Ultra base



FIG. 1 is a front perspective view of a first embodiment of an ultrabase showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front perspective view of a second embodiment of the ultrabase;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a right side elevational view thereof;

FIG. 12 is a left side elevational view;

FIG. 13 is top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

CLAIM The ornamental design for an ultra base, as shown and described. 